package api;

import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONUtil;
import lombok.SneakyThrows;
import model.UserInfo;
import util.AppVar;
import util.DBUtils;
import util.ResultUtils;
import util.SessionUtils;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;

/**
 * @description: 写博客
 * @author: chengbaiyi
 * @create: 2022-05-22 21:27
 */
@WebServlet("/addart")
public class AddArticleServlet extends HttpServlet {
    @SneakyThrows
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String msg = "未知错误";
        int data = 0;
        // 验证登录状态
        UserInfo userInfo = SessionUtils.getLoginUser(req);
        if (userInfo != null) {
            // 得到参数并校验
            String title = req.getParameter("title");
            String context = req.getParameter("context");
            if (!StrUtil.isBlank(title) && !StrUtil.isBlank(context)) {
                // 将数据插入到数据库
                Connection connection = DBUtils.getConnection();
                String sql = "insert into article(title,context,uid) values(?,?,?)";
                PreparedStatement statement = connection.prepareStatement(sql);
                statement.setString(1, title);
                statement.setString(2, context);
                statement.setInt(3, userInfo.getUid());
                data = statement.executeUpdate();
                msg = "";
                DBUtils.close(null, statement, connection);
            } else {
                msg = "参数错误！";
            }
        } else {
            msg = "请先登录！";
        }
        resp.setContentType(AppVar.RESPONSE_CONTENTTYPE_JSON);
        resp.getWriter().println(JSONUtil.toJsonStr(ResultUtils.toResult(200, data, msg)));
    }
}
